Resolving dependencies... cabal: Could not resolve dependencies: next goal: squeeze (user goal) rejecting: squeeze-1.0.4.8, 1.0.4.7, 1.0.4.6, 1.0.4.5, 1.0.4.4, 1.0.4.2, 1.0.4.1, 1.0.4.0, 1.0.3.0, 1.0.2.4, 1.0.2.3, 1.0.2.2, 1.0.2.0 (global constraint requires ==1.0.1.4) trying: squeeze-1.0.1.4 trying: base-4.8.1.0/installed-4f7... (dependency of squeeze-1.0.1.4) trying: parallel-3.2.0.6 (dependency of squeeze-1.0.1.4) trying: deepseq-1.4.1.1/installed-8fb... (dependency of parallel-3.2.0.6) next goal: haskell98 (dependency of squeeze-1.0.1.4) rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base==4.6.*) rejecting: haskell98-2.0.0.1 (conflict: deepseq => array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.5) rejecting: haskell98-2.0.0.0 (conflict: deepseq => array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.4) rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.3) Dependency tree exhaustively searched.